Quarterly report pursuant to Section 13 or 15(d)

Note 3 - Investments - Available-for-sale Investments (Details)

v3.22.1
Note 3 - Investments - Available-for-sale Investments (Details)
$ in Thousands
Mar. 31, 2022
USD ($)
Fair value $ 29,187
Short-term Investment [Member]  
Amortized cost 743
Gross unrealized gains 0
Gross unrealized losses 4
Fair value 739
Long-term Investment [Member]  
Amortized cost 29,376
Gross unrealized gains 19
Gross unrealized losses 947
Fair value 28,448
Short-term Certificates of Deposit [Member]  
Amortized cost 743
Gross unrealized gains 0
Gross unrealized losses 4
Fair value 739
US Treasury Securities [Member]  
Amortized cost 16,157
Gross unrealized gains 0
Gross unrealized losses 694
Fair value 15,463
Long-term Certificates of Deposit [Member]  
Amortized cost 13,219
Gross unrealized gains 19
Gross unrealized losses 253
Fair value $ 12,985